ecd39094ed
Normal mapping previously took no account of rotation or flips in any path except the TEXTURE_RECT (uniform draw) method. This passed flips to the shader in uniforms. In order to pass flips and rotations to the shader in batching and nvidia workaround, a per vertex attribute is required rather than a uniform. This introduces LIGHT_ANGLE which encodes both the rotation of a quad (vertex) and the horizontal and vertical flip. In order to optionally store light angles in batching, we switch to using a 'unit' sized array which can be reused for different FVF types, as there is no need for a separate array for each FVF, as it is a waste of memory.
290 lines
8.7 KiB
C++
290 lines
8.7 KiB
C++
/*************************************************************************/
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/* rasterizer_array_gles2.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#pragma once
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/*************************************************************************/
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/* rasterizer_array_gles2.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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/**
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* Fast single-threaded growable array for POD types.
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* For use in render drivers, not for general use.
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* TO BE REPLACED by local_vector.
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*/
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#include "core/os/memory.h"
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#include "core/vector.h"
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#include <string.h>
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// very simple non-growable array, that keeps track of the size of a 'unit'
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// which can be cast to whatever vertex format FVF required, and is initially
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// created with enough memory to hold the biggest FVF.
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// This allows multiple FVFs to use the same array.
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class RasterizerUnitArrayGLES2 {
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public:
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RasterizerUnitArrayGLES2() {
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_list = nullptr;
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free();
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}
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~RasterizerUnitArrayGLES2() { free(); }
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uint8_t *get_unit(unsigned int ui) { return &_list[ui * _unit_size_bytes]; }
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const uint8_t *get_unit(unsigned int ui) const { return &_list[ui * _unit_size_bytes]; }
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int size() const { return _size; }
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int max_size() const { return _max_size; }
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void free() {
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if (_list) {
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memdelete_arr(_list);
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_list = 0;
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}
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_size = 0;
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_max_size = 0;
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_max_size_bytes = 0;
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_unit_size_bytes = 0;
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}
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void create(int p_max_size_units, int p_max_unit_size_bytes) {
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free();
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_max_unit_size_bytes = p_max_unit_size_bytes;
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_max_size = p_max_size_units;
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_max_size_bytes = p_max_size_units * p_max_unit_size_bytes;
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if (_max_size_bytes) {
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_list = memnew_arr(uint8_t, _max_size_bytes);
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}
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}
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void prepare(int p_unit_size_bytes) {
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_unit_size_bytes = p_unit_size_bytes;
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_size = 0;
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}
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// several items at a time
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uint8_t *request(int p_num_items = 1) {
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int old_size = _size;
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_size += p_num_items;
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if (_size <= _max_size) {
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return get_unit(old_size);
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}
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// revert
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_size = old_size;
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return nullptr;
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}
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private:
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uint8_t *_list;
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int _size; // in units
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int _max_size; // in units
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int _max_size_bytes;
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int _unit_size_bytes;
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int _max_unit_size_bytes;
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};
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template <class T>
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class RasterizerArrayGLES2 {
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public:
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RasterizerArrayGLES2() {
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_list = 0;
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_size = 0;
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_max_size = 0;
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}
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~RasterizerArrayGLES2() { free(); }
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T &operator[](unsigned int ui) { return _list[ui]; }
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const T &operator[](unsigned int ui) const { return _list[ui]; }
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void free() {
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if (_list) {
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memdelete_arr(_list);
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_list = 0;
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}
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_size = 0;
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_max_size = 0;
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}
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void create(int p_size) {
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free();
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if (p_size) {
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_list = memnew_arr(T, p_size);
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}
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_size = 0;
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_max_size = p_size;
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}
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void reset() { _size = 0; }
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T *request_with_grow() {
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T *p = request();
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if (!p) {
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grow();
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return request_with_grow();
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}
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return p;
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}
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// none of that inefficient pass by value stuff here, thanks
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T *request() {
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if (_size < _max_size) {
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return &_list[_size++];
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}
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return 0;
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}
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// several items at a time
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T *request(int p_num_items) {
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int old_size = _size;
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_size += p_num_items;
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if (_size <= _max_size) {
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return &_list[old_size];
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}
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// revert
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_size = old_size;
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return 0;
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}
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int size() const { return _size; }
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int max_size() const { return _max_size; }
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const T *get_data() const { return _list; }
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bool copy_from(const RasterizerArrayGLES2<T> &o) {
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// no resizing done here, it should be done manually
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if (o.size() > _max_size)
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return false;
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// pod types only please!
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memcpy(_list, o.get_data(), o.size() * sizeof(T));
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_size = o.size();
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return true;
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}
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// if you want this to be cheap, call reset before grow,
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// to ensure there is no data to copy
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void grow() {
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unsigned int new_max_size = _max_size * 2;
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if (!new_max_size)
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new_max_size = 1;
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T *new_list = memnew_arr(T, new_max_size);
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// copy .. pod types only
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if (_list) {
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memcpy(new_list, _list, _size * sizeof(T));
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}
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unsigned int new_size = size();
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free();
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_list = new_list;
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_size = new_size;
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_max_size = new_max_size;
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}
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private:
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T *_list;
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int _size;
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int _max_size;
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};
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template <class T>
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class RasterizerArray_non_pod_GLES2 {
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public:
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RasterizerArray_non_pod_GLES2() {
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_size = 0;
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}
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const T &operator[](unsigned int ui) const { return _list[ui]; }
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void create(int p_size) {
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_list.resize(p_size);
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_size = 0;
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}
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void reset() { _size = 0; }
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void push_back(const T &val) {
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while (true) {
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if (_size < max_size()) {
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_list.set(_size, val);
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_size++;
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return;
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}
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grow();
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}
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}
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int size() const { return _size; }
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int max_size() const { return _list.size(); }
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private:
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void grow() {
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unsigned int new_max_size = _list.size() * 2;
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if (!new_max_size)
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new_max_size = 1;
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_list.resize(new_max_size);
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}
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Vector<T> _list;
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int _size;
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};
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